Speed governor for internalcombustion engines



L. LANGHAAR -coMBU'sTION ENGINES Fiied Jan. 1s, 1943' y v- SPEEDl vGOVERNOR Foa INTERNAL lllllllllllll lrltl/ I llllllllllllllll Il. I

PatentedMay 8, 1945 asians" 'smicovsmvon Fon. INTERNAL- j' ooMUsrioNsNomEs huisnummer; Mbuntfouverownsmp; f =MorrisrCounty;NJ.

" .l A A15p`1i-camm January 13, isfiagserialgivo. 472,229

s loiaims. (o1. ratz-@legi l Myinvention relates tojthe` class ofdevices .usedfor governing or limiting thefspeed Vof internal combustion engines,-more particularly vin ,motor` vehicles, andr anobject oli-my, invention,

among. others, is to provide?. governor' simple in construction, that. maybe readily installed for use in Vconventional commercialt engines. asgeasily.

as a gasket, that may be readily *adjusted4 for various speed limits when installed in. anxengin'e, that shall be'particularly eiective in maintaining engine power and performanceup'to any-desired` speed limit, and that shall provideuas accurate engine speed control asis practical: underoperaf tive tralc conditions. .Myfgovernorbel'ongs to the class commonly called air-velocity" gov--` spring` force,y which spring force` .reopen's the governor valve below .the desired. governed'. speed l through thesupply tubevfor fuel toy an engine and showing my improved governor securedthereim the governor valvey being open.

ernor valve closed. y l

Figure 4 is a view similar to Fig. 2 but looking at the governor from a ypoint at yrightangles to the'pointof view'of Figure 2'. fj

lFigure 5 is a view insection on bythe broken line 5-5 of Figr2.

Figure 6 is a view similar toFigure 2, but'showing a modification; l f

My present invention is anfimprovement upon the governor forming the subject matter of` patent to me No. 2,187,243,-dated` Jan. 16, 1940, for the purposei'of providing external adjustment with thel governor'in use in a conventional `commercial engine as above" stated and 'for better engine power and performance than with the deviceiof Patent 2,187,243;

In the accompanying drawing 'the numeral .B denotes a lmotor that'may be of any ordinary 'construction of theV internal `combustion type," 9 theA exhaustmanifold, l0 the4 intakemanifold; 'lvl Figure `3is asimilarview showing the govthe carbureter andy4 I2 the fuel supply 'tube vex- I tending -from the 'carburetor tothe intake inanifolcl, all of which parts `may be of ordinaryfand well known "construction and "which also in` cludea throttle armV I3 securedl to the shaft'M of a throttle valve l5 located to control the pasjsage in the tube l2 between the Vca'rb'ureie'rI and manifold l0.' "A throttle rod I6 connected at one the accompanying a plane denoted l ,l5 ernors' in which the valvel is actuated bytheA Y force of the intake airresistedby. calibrated ingv withthe incident end thereof being angularly disposed to thedirection"` of 1 air flowand.- the Vdischarge end'more nearly in#y the directionof air flow; withL the valve in its open position as shown l end. with;v the arm` I3 extends l to` any suitable lol f cation or. device for operating the throttle valve p ;As a` matterof convenience and ecOnOmyfI-so construct-my improved devicethat it mayxbef` made at-...al minimum cost and` maybe readily j ,attached to motor equipment in commonusmsuch device, as hereinbefore mentioned,.being locatedr inside; of the engine fuel intake .l 2.and comprising l a -case` 'I 1 .of tubular form and .preferably- :having` a-flange. |81 extending; in positionto be securedl between the flanges Ill-20 at. theadj'acent ends,

respectively.,4 of.` rthe fuel supply 'tubes |21 .and :the part `2'lt'thereof. vprojecting `fromthe carbureter H1.. Thebasel l1 is: rounded as atfu22tatthe=en` trance end` thereofto increase. theefliciency. of1the airflow. l. l y f 'Myx improved governor .valve `2i! is pivotally` mounted-on ashaft 24 in theucase' SH preferably at kone sidel'of` the 'diametricalfcenter of said case;

.asrfshown in iFigs. 24 vand 31 ofthe idrawlng,"

This valve lis bentat or near such pivotalsmountin'Figs.- 2 ando o`f the drawing. By bent Irefer to form and not method offabrication. `By this. v.construction the valve offers extremely slight-air resistance on the discharge end when` open, proobtained gine performance. A` spring 25 is attached to` the valve land operatest retain it inopen posiofjthe spring 25 onthe valve 23 for 'different/en'- ginetspeedadjustments thereof. `A-relatively light spring 26v whichis adjustable in spring support f 29 by meansl of screw 33, one end of said spring being: attached to the valve 23; is also shown as a corrective for spring 25 as a means of improved precision overa wide range ofe'ngine speedad- 'justmentsf v1I do not` limit myself to 'any'speclal formi or forms of springs, thev formsr shown being rof simplefde'sign. The y spring 'support' 29 is attached tothe case 2'l/as Shown'in Figs.` 2, 3k

6; the stop 34 being a .part of che support 12s."

do not limit myself to `these `specific forms-and details of adjustment of'springleveragewhich are shown forsimplicity. l

In the form ofthe deviceshown in parts `are of Ithesame general construction'as that shown in the 'preceding figures and. ashere-` inabove,v described,. n spring 25 'is 'omitted any vsuitable way being arrangedforthe rod'to ternally adjustable spring 35 is arranged to .be rent passing through said conduit, and a spring adjusted outside of the tubes for supply of fuel 3 to hold said butterfly valve 'normally open below to the engine, as shown inliig.l 6, infwhich-ispring i someA pressure thereon, said butterfly'valve 'and 35 has an arm 36 connected at one end' tothe t spring being mountedrinfa carrier'and` adapted valve 23 below the pivot 24 and another arm 31 connected with a threaded rod 38 extending outiwardly between the flanges |9-20, the outer en` of the rod being threaded for an adjustinggnut .fcarrier being lprovided with a flange for mounting carriera converging air passage.y

passbetween the flanges, but I show afconvene.

ient way in which to illustrate'. Any suitable af/ ingfan unbalanced buttery valve urged toward arrangement of parts may be used for f olotairg.- ,closed'position by the airl 'flow through the coning externaladjustment provided ajoint'in the duitand normally held open by spring means,r engine air intake conduit is utilized-.for the pur- A, a ystop to limit opening movement of the valve, pose and thereby adaptingv said adjustment means said buttery valve, stop and spring being mountl 'fQi'fllSe in ag conventional-commercialengine. ed i n"afcar1ierjand adapted for insertionfas a i Figure 3' shows the' valve inaclosed position, o unit" withinsaid" conduit, said carrier being pro- 'thel Word ,closed merely signifying some closed 'L vided withv a 'angefor -mounting the carrier in Vvposition'whatever that may be and not necessarily` n the'conduit and forming'with said'carrier a airtightr In moving` from the open 'position of rg0 round-edgedair entranceg' y 1 'Fig-'2 to theclosedposition lof Fig.' v3, the leverageiv "Q'SIiAsan"article of commerce' adapted for'use 'of'the' spring 25 on the valve 23'decreases' because with fa' conventional internal combustion engine, the leverageismovingtoward dead-center, dead-1v saldi engine having an air intake conduit with a for insertion as a unit Within said conduit, said the carrier in the conduit and forming with said 2. A 'self-contained governor for influencing airi lOl'flow-throughaconduit, said governor compris` center 'being a term understood 'by al1 skilled joint; ra governor for inuenoing'air flow throughk mechanics and-signifying a positionwherein the 5 saidcon'duit, said governor comprising an un- `.leverage is zeros The word leverage is used corbalanced buttery` valve urged toward vclosed po-5 rectly,l and 'does not mean"moment,r which is sitionaby airdiow through-said conduit, a spring the Y'leveragefmulti-pliefi @by the force. Likewise,v located fvi'rithil'iv' said .conduit .to yieldingly Aresist 'inl'.Fig.' 6as .thevalve moves toward closurefthel such 'closing-movement, and means associated i'for."v

This application is` a oontiniiation-ink-part of Jdetermined'intake. air Velocity andato permit.

leverage moves toward dead center,-being in both 30' with said spring arranged to adjust its forceup'on caSeS decreasing leVeI'age as the Valve mOVeS t0- said valve, vsaid means passing through saidjoint ward closure. Various structural considerations]y ,1-,0 the outside 0f the conduit.y l

of space, 'simplicity and avoidanceof undue fair; 4. Asanarticleiof y.commerce adapted for use impedance influence this choice of construction.; t wthzaconventional internal combustion engine, Bycarcful utilization of aerodynamic principles said engine having an air intake conduit with a inmakingthe valve 23,1 have found it jpractical joint, 1a governor lfor influencingair flow through toeliminatc the spring k2licompletely and yetobsaid conduit-,said governorl comprisingY an un- Atain desired :accuracy 0f engine Speed 'controlfbyg balancedybutterny valveurgedtoward closed posi'- use of such decreasing leverage on the springs 25,; tionjby the ow of air through the conduit, a'nd 35, orfequivalent; and I prefer and claim. such 40 normally held open by means includingaispring simpleconstruction while merely kdisclosing the forl exerting `a yieldable force on said -valve lin i" construction-with the spring 26 as :a practical@ opposition ,to the force of the air flow, said means including .mechanism extending' ythrough, said 1 arrangementfif desired. f l i i Y I amtawarethat a bent valve is `not new per se v4joint and constructed and arranged to adjust sai and `that a spring or springsacting with ydecreas' .is Vforce frornoutside said conduit.k f i ing leverageas 'the valve moves'towardV closure,Y v 5.1As an article of commerce adapted for use is not new lper se and is shown in my patent of with a conventional internalcombustion engine,

record noted herein. yThe combination ofl a'bentl said engine having an air intakeconduit with a i valve, hereinbefore defined, -anda spring` or joint,I a governor for inuencing air flow through Y springs acting with decreasing leverage asstated; vsaid conduit, said governor comprising 'an'unbalis new and produces new. and valuable results. anced butterfly valve urgedtoward closed position Allgovernors operating by the lforce of the intake by the flow od air through the conduit, and norair offer some airimpedancehaving some adverse,v mally held yopenwloy vresilient means for exerting i eIfect-onengine performance, and I- have found; a yieldable forceponsaid valve in opposition to i" that '.witni this new combination of parts it Joethe force cf the auf flow, Said means including comes practical to operate the valve with such meehevilism eXGeIIiDgGhYOHghSBd joint and C011- siignt vair' and springY force that air impedanceL Stnwied `and arranged i0 adjust Seiclfcrce from becomes p operatively neglegible throughout the Oli-leide Said 0 0I1diiit y K governed speed range. Various vehicle drivers 6.- 111 Combinati@ With ,a Conduit fOr Combushave reported no observable difference in f per-" iiQl aiifii'lake'of an internal COmbUSiOIl engine, formance up to a given speedlimitwith or withA` 95 governor Comprising a PiVOiiaiiY mounted Check out my improved governor being installed in the Wiki? artid, 3f Spring v0l?*ilfil-iivelyr acting heieeny, a' engine. VIt is alwaysto be considered. that my finged CaSe having a rounded edge Oreeand improved governor is intended primarily as an` adapted t0k be `secured between the ang'es -cf article of' commerce adaptedY for use with a conf 65 abil-tiling ends 0f Said Conduit for locating YSeid ventional engine without special'provision therespring and valve 'in said conduit,said spring bei f f y Y ingfarrang'ed toholdvsaid valve open-below some 1 .my io-pending applioationliiied septembers, 194,1,l closure ai scniefhighcr velocity? for scverningcnof SerialNumber 409,390,"` gine ,Speed according. to the amountv of valve I claim; ,l ,A 1 closure, said spring being also arranged to operate y 1; A self-cc'ix'itainedk governor for influencing onl said valveto increase the closure resistance owofthrough a.conduit,`said governor com-` thereof'l at a faster rate than the amount of prisi'ng'za carrier, a pivotallyhmounted unbalanced `incision o f'sai'd valve. 4 Y c beenvaiveiobticnse @lenti/nerr cui-75 Lr LOWS LANGnAAe 

